US4781226A - Driving and control mechanism for clamping, presentation and fastening of weft threads in gripper weaving looms - Google Patents

Driving and control mechanism for clamping, presentation and fastening of weft threads in gripper weaving looms Download PDF

Info

Publication number
US4781226A
US4781226A US07/033,740 US3374087A US4781226A US 4781226 A US4781226 A US 4781226A US 3374087 A US3374087 A US 3374087A US 4781226 A US4781226 A US 4781226A
Authority
US
United States
Prior art keywords
driving
cam
control mechanism
levers
mechanism according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US07/033,740
Other languages
English (en)
Inventor
Denis Moeneclaey
Remi Lagache
Johnny Victoor
Lucien Coopman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Picanol NV
Original Assignee
Picanol NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Picanol NV filed Critical Picanol NV
Assigned to PICANOL N.V. reassignment PICANOL N.V. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: COOPMAN, LUCIEN, LAGACHE, REMI, MOENECLAEY, DENIS, VICTOOR, JOHNNY
Application granted granted Critical
Publication of US4781226A publication Critical patent/US4781226A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/125—Weft holding devices
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/38—Weft pattern mechanisms

Definitions

  • the present invention relates to a driving and control mechanism for thread presentation elements in gripper weaving looms, that does not have the aforesaid disadvantage and one that makes possible a large range of movement possibilities for the thread presentation elements.
  • the present invention comprises a driving and control mechanism for thread presentation elements in gripper weaving looms, whereby at least one thread presentation element can be moved into different positions, whereby the selection does not take place in one of the outer positions.
  • This mechanism is characterized by the fact that it comprises a combination of: for each thread presentation element, at least two levers cooperating with one lever arm in a common manner with coupling means, whereby the coupling means achieve the connection between the levers and the thread presentation element; cam transmissions for moving the levers; locking means able to act on the levers located opposite to the lever arms cooperating with the coupling means; and control means for controlling the locking means.
  • FIG. 1 is a partial, perspective illustration of a driving and control mechanism for a thread presentation element in accordance with the invention
  • FIG. 3 is a graphical analysis of the curve in FIG. 2, whereby each of the curves illustrated corresponds to separate movements obtained by means of the aforesaid different levers;
  • FIG. 7 is a graph illustrating the cam pattern of a cam transmission that is part of the aforesaid control means, according to a specific embodiment, in order to control the locking means.
  • FIG. 1 illustrates an embodiment of the invention, whereby a thread presentation element 1 as described in U.S. patent application Ser. No. 033,739 mainly composed of a thread clamp 2, must be controlled in such a way that it can take three positions, respectively A, B and C, near the cloth edge 3, and more specially on the weft insertion side of the shed 4.
  • the driving and control mechanism in accordance with the invention comprises two levers 5 and 6; coupling means 7 which connects the levers 5 and 6 and the thread presentation element 1; cam transmissions 8 and 9 for moving the levers 5 and 6; locking means 10; and control means 11 for controlling the locking means 10.
  • the levers 5 and 6 are mounted near each other in the embodiment of FIG. 1 and can move along parallel planes in such a way that they can cooperates with one of their lever arms, respectively 12 and 13 and in a common manner with the coupling means 7.
  • the lever arms 12 and 13 are pivotally connected at their ends, respectively 14 and 15, to each other as well as with the coupling means 7, for instance by means of a shaft 16.
  • the other lever arms, respectively 17 and 18, cooperate with their ends 19 and 20, with the locking means 10.
  • the locking means 10 illustrated in FIG. 1 comprises rotatable hook elements 33 and 34 that can engage the ends 19 and 20 of the levers 5 and 6, whereby the upwards movement of these ends 19 and 20 can be prohibited.
  • the control means 11 used to this end are, for instance, of the electro-magnetic type and c o mprise, as illustrated in FIG. 1, rods 35 and 36 that can be moved by means of electro-magnets 37 and 38, and displace the rotatable hook elements 33 and 34.
  • the hook element 33 is engaged according to the illustrated embodiment with the end 19 of the lever arm 17.
  • the levers 5 and 6 are also pushed upwards at their coupled ends 14 and 15, whereby the coupling means 7 are moved against the force of the spring 39 and of the elastic means 41, in such a way that the thread clamp 2 is moved to another position.
  • the movement of the thread clamp 2 is determined by the shape of the cam wheel 29.
  • the hook element 34 is also brought into its operative position near the end 20 of the lever 6. If the cam transmissions 8 and 9 are rotated further, the lever 5 is moved downwards by means of its contact with follower 31 and the cam wheel 29. As the ends 14 and 15 of the levers 5 and 6 are coupled with each other, the lever 6 rotates about its follower 32 over the cam wheel 30 until the end 20 comes into contact with the hook element 34. At this moment, the cam wheel 30 determines the movement of the lever 6 and a while in the C position.
  • FIGS. 4 and 5 illustrate an embodiment of a driving and control mechanism for four thread presentation elements.
  • the mechanism mainly comprises the combination of four mechanisms as illustrated in FIG. 1, whereby these four elements are mounted on a common driving shaft 28.
  • Two compression springs 53 and 54 urge cam followers 31A supported on shaft 49 into contact with the cam wheels 29.
  • the springs 55 urge cam followers 32 on levers 6 into contact with corresponding cam wheels 30.
  • the control means 11 comprise a cam transmission 56, having for each hook element 33 and 34 a cam wheel 57 and 58, respectively, as well as electro-magnets 59 and 60 which cooperate in known fashion with the lever arms 61 and 62 fastened to the hook elements 33 and 34.
  • the lever arm 61 held by the electro-magnet 59 engages the hook element 33 with the end 19 of the corresponding lever 5.
  • the functioning is then similar to that of the embodiment described in accordance with FIG. 1 and the clamp is moved to the B position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US07/033,740 1986-04-03 1987-04-03 Driving and control mechanism for clamping, presentation and fastening of weft threads in gripper weaving looms Expired - Fee Related US4781226A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8600858 1986-04-03
NL8600858A NL8600858A (nl) 1986-04-03 1986-04-03 Aandrijf- en stuurmechanisme voor het klemmen, presenteren en vasthouden van inslagdraden bij grijperweefmachines.

Publications (1)

Publication Number Publication Date
US4781226A true US4781226A (en) 1988-11-01

Family

ID=19847826

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/033,740 Expired - Fee Related US4781226A (en) 1986-04-03 1987-04-03 Driving and control mechanism for clamping, presentation and fastening of weft threads in gripper weaving looms

Country Status (3)

Country Link
US (1) US4781226A (de)
EP (1) EP0241075A3 (de)
NL (1) NL8600858A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4936355A (en) * 1988-04-25 1990-06-26 Sulzer Brothers Limited Weft mixer for a loom
US4964443A (en) * 1988-06-17 1990-10-23 Picanol N.V. Weft mixer
US5031671A (en) * 1989-07-21 1991-07-16 Sulzer Brothers Limited Weft yarn changer for a loom
EP0598264A1 (de) * 1992-11-16 1994-05-25 Picanol N.V. Vorrichtung zum Auswählen und Zustellen von Schussfäden für eine Webmaschine
US20190226127A1 (en) * 2016-08-11 2019-07-25 Picanol Gripper band and gripper unit for a gripper weaving machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1002764A6 (nl) * 1989-01-23 1991-05-28 Wiele Michel Van De Nv Stuurmechanisme voor het selecteren van inslagdraden bij grijperweefmachines.
EP0458735A1 (de) * 1990-05-21 1991-11-27 Gebrüder Sulzer Aktiengesellschaft Schussfadenspanner für Mehrfarben-Projektilwebmaschinen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4076054A (en) * 1975-10-03 1978-02-28 Somet Societa' Meccanica Tessile S.P.A. Weft presenting device for looms with selective weft feed
US4191222A (en) * 1978-02-28 1980-03-04 Macart Textiles (Machinery) Limited Weft presenter mechanisms
BE897288A (fr) * 1982-07-19 1983-11-03 Somet Soc Mec Tessile Presenteuse de trame pour metiers a tisser

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS166597B1 (de) * 1974-07-25 1976-03-29
US4326566A (en) * 1979-09-11 1982-04-27 N. V. Weefautomaten Picanol Color selector
CH650290A5 (de) * 1981-06-09 1985-07-15 Saurer Ag Adolph Schussfaden-auswahlvorrichtung an einer webmaschine.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4076054A (en) * 1975-10-03 1978-02-28 Somet Societa' Meccanica Tessile S.P.A. Weft presenting device for looms with selective weft feed
US4191222A (en) * 1978-02-28 1980-03-04 Macart Textiles (Machinery) Limited Weft presenter mechanisms
BE897288A (fr) * 1982-07-19 1983-11-03 Somet Soc Mec Tessile Presenteuse de trame pour metiers a tisser

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4936355A (en) * 1988-04-25 1990-06-26 Sulzer Brothers Limited Weft mixer for a loom
US4964443A (en) * 1988-06-17 1990-10-23 Picanol N.V. Weft mixer
US5031671A (en) * 1989-07-21 1991-07-16 Sulzer Brothers Limited Weft yarn changer for a loom
EP0598264A1 (de) * 1992-11-16 1994-05-25 Picanol N.V. Vorrichtung zum Auswählen und Zustellen von Schussfäden für eine Webmaschine
BE1006347A3 (nl) * 1992-11-16 1994-07-26 Picanol Nv Inrichting voor het presenteren van inslagdraden bij weefmachines.
US5400834A (en) * 1992-11-16 1995-03-28 Picanol, N.V. Apparatus for selectively moving weft feeders between a rest position and a feed position
US20190226127A1 (en) * 2016-08-11 2019-07-25 Picanol Gripper band and gripper unit for a gripper weaving machine

Also Published As

Publication number Publication date
NL8600858A (nl) 1987-11-02
EP0241075A2 (de) 1987-10-14
EP0241075A3 (de) 1989-11-23

Similar Documents

Publication Publication Date Title
US4781226A (en) Driving and control mechanism for clamping, presentation and fastening of weft threads in gripper weaving looms
US4182380A (en) Dobbies for weaving looms
RU2112094C1 (ru) Улучшенная система управления для образующих собранную в складку кромку устройств в ткацком станке, в частности, в ткацком станке для махровой ткани, образуемой путем изменения ударного положения гребенки
US4326566A (en) Color selector
US5090456A (en) Weft gripping and cutting apparatus in rapier loom
JPH0135102B2 (de)
EP0519550A1 (de) Antriebsvorrichtung einer Leistenfachbildevorrichtung
US4936355A (en) Weft mixer for a loom
US5411064A (en) Narrow fabric loom operating mechanism
US4667705A (en) Weft change system with a weaving machine
EP0379703A1 (de) Kontrollvorrichtung zur Schussfadenauswahl bei Greiferwebmaschinen
US4132249A (en) Weft selection and retention mechanism for shuttleless looms
US3315707A (en) Weft thread changing apparatus in a shuttleless loom
US3568725A (en) Dobbies
US5125434A (en) Actuation elements for a rotating dobby
EP0009840B1 (de) Schussfadenwechsel-system für Webstühle
RU2066719C1 (ru) Кромкообразующее устройство бесчелночного ткацкого станка для выработки махровой ткани
US3731712A (en) Weft distributor and selector for power looms
US5419370A (en) Griper welf inserter switching device
EP0368402B1 (de) Vorrichtung zur Kantenbildung an Geweben
WO1989003441A1 (en) Warp thread control
BE1010343A4 (nl) Dubbelgrijperweefmachine.
SU1602893A1 (ru) Механизм управлени ремизоподъемной каретки ткацкого станка
US4351368A (en) Dobby
JPH0333816B2 (de)

Legal Events

Date Code Title Description
AS Assignment

Owner name: PICANOL N.V., POLENLAAN 3-7, 8900 IEPER (BELGIUM)

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:MOENECLAEY, DENIS;LAGACHE, REMI;VICTOOR, JOHNNY;AND OTHERS;REEL/FRAME:004685/0924

Effective date: 19870319

Owner name: PICANOL N.V.,BELGIUM

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MOENECLAEY, DENIS;LAGACHE, REMI;VICTOOR, JOHNNY;AND OTHERS;REEL/FRAME:004685/0924

Effective date: 19870319

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FPAY Fee payment

Year of fee payment: 4

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
FP Lapsed due to failure to pay maintenance fee

Effective date: 19961106

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362